Please look Emotional Freedom Techniques. I have successfully used this with clients around loss and bereavement (even early stages), its a great self-help tool as well as an effective therapeutic tool when used with a trained practitioner. There are variants using the technique which are more powerful than even basic EFT.
https://eftinternational.org is a great starting point for quality trained practitioners (I will state for the record I am a member of their Ethics Committee). EFT is producing good outcomes for PTSD & Trauma see research here: https://eftinternational.org/d...ft-science-research/ and here: https://cdn.ymaws.com/www.ener..._of_Evidence_-_J.pdf.
If you want to speak to me please do get in touch.
Best wishes